Heel-breasting machine.



No. 645,994. Patented Mar. 27, I900. A. G. BREWER.

HEEL BREASTING MACHINE.

(Application filed Apr. 27, 1899.)

3 Sheets-Sheet (No Model.)

7 OZ w 0 m \X/ITNESSEEZ mvEN-rm H1 n4: Nonms mans 00.. OTaumo WASHIN u u c A. G. BREWER. HEEL BREASTING MACHINE.

(Application filed Apr. 27, 1899.)

Patented Mar. 27, I900.

(No Model.)

No. 645,994. I Patented Mar. 27, I900. A. a. BREWER.

HEEL BREASTING MACHINE.

(Application filed Apr. 27, 1899.) (No Model. I

3 Sheets-Sheet 3.

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ALBERT G. BREWER, OF HOPKINTON, MASSACHUSETTS, ASSIGNOR TO THE UNITED SHOE MACHINERY COMPANY, OF BOSTON, MASSACHUSETTS.

HEEL-BREASTING MACIHINE.

SPECIFICATION forming part of Letters Patent N 0. 645,994, dated March '27, 1900.

Application filed April 27, 1899. Serial No. 714,671. (No model.)

To all whom it may concern: Z), affixed to the carrier 19, and a bracket I), Be it known that I, ALBERT G. BREWER, of affixed to the frame a and having a vertical I-Iopkinton, in the countyof Middlesex and slot I), through which the carrier 1) extends. State of Massachusetts, haveinvented certain 6 represents a knife-holder which is adapt- 5 5 new and useful Improvements in HeelBreasted to move with the carrier 19 and is guided ingMachines, of which the followingisaspeciby the guide-rod 01, said knife-holder having fication. 1 an arm 6, provided with a socket e ,'fitted to This invention relates to power-driven maslide upon said guide-rod. The carrier 1) is chines for breasting heels; and it has for its connected with the knife-holder e by means 1o chief object to provide automatic means for of a connection having provisions for impartquickly stopping the action of the breastinging a positive movement to the knife-holder knife when it has cut through the breast of to cause a positive cutting action of the knife the heel and before it can enter and cut the and adapted to be made inoperative to dissole to which the heel is attached. continue the action of the knife, automatic 15 The invention also has for its object to promeans being provided to make the said convide simple and convenient means for ennection inoperative when the knife has finabling the operator to accurately locate the ished breasting the heel and before it can enheel in proper position relatively to the breastter the sole. ing-knife. j V In the embodiment of my invention here 20 The invention consists in the improvements shown the connection between the carrier and whichIwill now proceed to describe and claim. the knife-holder is a toggle com posed of the Of the accompanying drawings, forming a two links or members ff, the meeting ends part of this specification, Figure 1 represents of which are connected at f The link f is a front elevation of aheel-brea-sting machine connected at f with an ear or bracket f, at- 7 5 25 embodying my invention. Fig. 2 represents tached to the carrier 6, while the link f is a side elevation of the same. Fig. 3 repreconnected by a stud f with ears 6 ciiformed sents-a side elevation,partlyin section, of the on the knife-holder e. When the toggle is upper portion of the machine, showing the broken by thedeflection of the meeting ends connection between the knife-holder and its of its members, as shown in Fig.4, there is 3o carrier in operative condition. Fig. 4 repreno positive connection between the carrier Z) sents a view similar to Fig. 3, showing the and knife-holder 6. Means are provided for said connection made inoperative. Fig. 5 preventing the breaking movement of the represents a perspective view of the knife toggle in one direction, said means, as here holder and certain parts connected therewith. shown,'being a stop-screw g, engaged with the 35 Fig.(irepresentsaperspective view,andFigs. knife-holder and arranged to abut against 7, 8, 9, and 10 sectional views, of parts of the the meeting ends of the toggle links or memmachine, hereinafter referred to. Fig. 11 repbers ff when said meeting ends are slightly resentsaperspective view of the block or gage atone side of a straight line drawn between by which the operator adjusts the heel. the centers of the studs f and f When the 0 The same letters and numerals of reference toggle is in this position, downward pressure indicate the same parts in all the figures. of the carrier 1) will press the meeting ends In the drawings, a represents the supportof the toggle against the'stop g, and the toging-frame of the machine, and 19 represents a gle will therefore constitute a rigid or posicarrier which is positively reciprocated on the 'tive connection between the carrier and the 45 frame by suitable means, such as a powerknife-holder.

driven shaft 0, eccentrics c c on the shaft, The meanshere shown for making the constraps c c on said eccentrics, and rods, c c nection inoperative or, in other words, break- 'connecting the straps c with the ends of the ing the toggle, as shown in Fig. 4, comprise carrier 12. The carrier is guided in its recipa gage h, movable with the knife-holder and mo 50 rocating movementbya fixed vertical guide adapted to abut against the shank portion of rod (Z, engaging a socket 19 formed on an arm the sole of a boot or shoe mounted on a jack or work-support 1 hereinafter referred to; an arm 71., pivoted at h to-the arm e of the knife-carrier, the swinging end of said arm having provisions for holding and adjusting the gage h; project-ions h on the side portions of said arm, (the arm being practically U-shaped and comprising the two side portions 2 2 and the connecting front portion 3, shown in Fig. 1,) and shoulders or projections 7L5, formed on the stud f which connects the lower member of the toggle with the knifeholder. The side portions 2 2 of the arm h are provided with lugs t 4, Fig. 5, which rest loosely on projections on the arm 6 while the gage his out of contact with the work. When the descent of the carrier and knifeholder brings the gage h into contact with the shank of the boot or shoe, the downward movement of the gage is stopped and the continued downward movement of the knifeholder causes the projections h on the arm h to cooperate with the projections 7L5 on the stud f and gives said stud a partial rotation from the position shown in Fig. 3 to that shown in Fig. 4. The stud f is rigidly affixed to the member f of the toggle. Consequently the said rotation of the stud swings the toggle members f and f away from the support g, and thus breaks the toggle, discontinuing the positive connection between the earrier and the knife-holder and the cutting action of the knife. It will be seen, therefore, that by adjusting the gage 7L so that it will strike the sole of the boot or shoe just before the breasting-knife reaches the sole the action of the knife will be automatically discontinued in time to prevent the entrance of the knife into the sole.

An important feature of my invention is the provision of means for imparting movement from the gage to one end of the toggle, and thus impartinga breaking movement to the toggle, which is much quicker than would be the case if the breaking movement were applied to the joint between the toggle links or members. It will be seen that aslight rotary movement of the stud f caused by the contact of the arm projection /l with the stud projection 7r, is sufficient to break the toggle, so that the breaking is very quickly accomplished. If, however, the projection 71, or its equivalent were to act directly on the pin ficonneetingthelinksff, amuch longer movement would be required to break the toggle, and more time would be required for the breaking operation. It is very desirable to stop the cutting action of the knife instantaneously. Hence 'the importance of the quick breaking of the toggle will be apparent.

The jack or work-support i may be of any suitable construction and may be arranged to swing to and from its operative position. The jack is here shown as mounted to oscillate upon the shaft 0.

j represents a guide-block which is pivoted at j to ears 7' adj ust-ably attached by a screw and thumb nut j to an army, which is pivtent q.

oted atj to the sleeve e The guide j is adapted to bear on the top lift of the heel to be breasted. The arm carrying said guide, is yieldingly supported by a spring and is yieldingly connected bya spring on with a rod 71, which is connected with a treadle-lever 0 at the base of the machine. When said lever is depressed, the spring m, which is interposed between a head or collar on the upper end of the rod a and the arm j", presses the arm y and the guidej yieldingly downward, causing the guide to bear upon the top lift of the heel. The guide enables the operator to properly locate the heel prior to the descent of the breasting-knife. The guide j may be made with one edge straight and the other concave, as shown in Fig. 11, to fit either a straight or a concave heel-breast. The adjustable connection between the guide and the arm 7' enables the guide to be adjusted toward and from the breast or front end of the heel.

The machine is provided with a suitable clutch, which connects the shaft 0 with a loose driving-pulley p when the treadle 0 is fully depressed, this connection being established after the guidej has been brought to bear upon the heel. The loose pulleyis automatically disconnected from the clutch and from the shaft when the shaft has made a con1- plete rotation and at the conclusion of the upward movement of the carrier 1), so that the carrier and knife will not again descend until the treadle 0 is again depressed. The means whereby this result is accomplished are shown in Figs. 6, 7, S, 9, and 10.

It is desirable that the loose pulley 1) should make but one revolution during the process of breasting the heel, and this is regulated as follows: Pivotally mounted on one of the cocentrics c is an arm g, which is normally pressed toward the pulley p by a spring recessed in the said arm and bearing against the eccentric on which it is mounted. The arm q is held out of engagement with the pins 9 on the pulley p by a detent q, which is secured to a rock-shaft mounted in a bracket (1 and normally moved toward the pulley p by the torsional action of the spring q, one end of which is attachedto the rock-shaft bya collar and set-screw and the other end bearing on the bracket g Extending downwardly from the bracket g is an arm 7", which is recessed and forms a guide for a toggle r, the upper member of which is connected by an adjustable rod 1 to the treadle 0, while the lower member, which is formed with a toe r and arranged to engage an adjustable stopscrew T is connected by a link 0' to the de- When the treadle o is depressed by the operator, the detent q is moved outwardly to the position shown in dotted lines in Fig. 2 and allows the arm (1 to engage the pins 19 on the loose pulley p and move the eccentric around. As the toggle r in its downward motion reaches the stop-screw r it istripped and thrown out of line, as shown in Fig. 8,

thus allowing the link r to return the detent q to its normal position, as shown in Figs. 9 and 2, through the action of the spring g it then being in the path of the arm q, and as the pulley completes its revolution the said arm (1 engages the inclined surface s of the detent and is forced toward the eccentric and out of engagement with the pins p. Referring to Fig. 9, it will be seen that the link and detent are free to return to their normal position while the rod r is still held down by the treadle. When the treadle is released, the springreturns the rod and toggle to the position shown in Fig. 2, and the machine is so timed that the'clutch mechanism is releasedat the pointwhen the oarrier 1) reaches its highest point.

The gage h is here shown asa screw-threaded rod, the head of which is arranged to strike the shank of the boot or shoe. It is adjusted by means of a nut h", engaged with the screwthread on the gage, said nut being located between two cars on the arm h, through which ears the gage is adapted to slide. The gage is prevented from rotating by a key 71. in one of said ears entering a slot in the threaded portion of the gage. I Rotation of the nut h therefore causes endwise movement of the gage.

I do not claim a heel-breasting machine comprising a work-support, a knife-holder movable toward and from said support and having a breasting-knife, a positively-reciprocat-ed carrier for the knife-holder, a connection between the carrier and the knifeholder having provisions for imparting positive movement to the knife-holder and adapted to be made inoperative to discontinue the action of the knife, and automatic means for making said connection inoperative. I furthermore do not claim a heel-breasting machine comprising a work-support, a knifeholder movable toward and from said support and having a breasting-knife, a posi tively-reciprocated carrier for the knifeholder, a connection between the carrier and knife-holder having provisions for im'partin g positive movementto the knife-holder and adapted to be made inoperative to discontinue the action of. the knife, a yielding gage movable with the knife-holder and arranged to abut against the work, and means intermediate the said gage and connection, whereby contact of the gage with the work is caused to make the connection inoperative.

I claim- 1. In a heel-breasting machine comprising the following instrumentalities, namely, a work-support, a carrier positively reciprocated toward and from the support, a knifeholder located between the carrier and support and having a breasting-knife, a toggle connecting the carrier and knife holder, means for supporting the toggle against a breaking movement in one direction,whereby the toggle is enabled to impart positive movement to the knife-holder, and a gage movable with the knife-holder; the combination with said instrumentalities, of means for imparting movement from the gage to one end of the toggle and thereby imparting a quick breaking movement to said toggle.

2. In a heel-breasting machine comprising the following instrumentalities, namely, a worksupport, a carrier positively reciprocated toward and from the support, a knifeholder located between the carrier and support and having a breasting-knife, a toggle connecting the carrier and knife holder, means for supporting the toggle against a breaking movement in one direction, a yield ing gage movable with the knife-holder and arranged to abut against the work; the combination with said instrum.entalities,of means intermediate the gage and one end of the toggle, whereby contact of the gage with the work is caused to impart a quick breaking movement to the toggle.

3. A heel-breasting machine comprising a work-support, a carrier positively reciprocated toward and from the support, a knifeholder located between the carrier and support and having a breasting-knife, a toggle connecting the carrier and knife holder, means for supporting the toggle against a breaking movement in one direction, an arm pivoted to the knife-holder and provided at its swinging end with a gage, and a stud affixed to one member of the toggle and adapted to be partially rotated to break the toggle by contact with said arm.

4. A heel-breasting machine comprising a work-support, a carrier positively recipr0= cated toward and from the support, a knifeholder located between the carrier and support and having a breasting-knife, a toggle connecting the carrier and knife-holder, an adjustable stop on the knife-holder adapted to support the toggle against a breaking movement in one direction, and automatic means for imparting abreakin g movement in the opposite direction to said toggle.

5. A heel-breasting machine comprising a work-support, a carrier positively recipro cated toward and from the support, a knifeholder located between the carrier and support and having a breasting-knife, a toggle connecting the carrier and knife holder, means for supporting the toggle against a breaking movement in one direction, an arm pivoted to the knife-holder, a gage adjustably mounted on the swinging end of the arm, means for adjusting the gage relatively to the arm, and a stud affixed to one member of the toggle and adapted to be partially rotated by contact with said arm.

6. A heel-breasting machine comprising a work-support, a knife-holder movable toward and from the support and having a breastingknife, a guide having a swinging connection with the knife-holder and adapted to bear on the top lift of a heel on the work-support.

7. A heel-breasting machine comprising a work-support, a knife-holder movable toward arm to which said guide is pivoted, said arm being pivoted to the knife-holder, and means for exerting downward pressure on said arm.

In testimony whereof I have aflixed my signature in presence of two witnesses.

ALBERT G. BREWER.

Witnesses:

FRED A. W001), WEBsTER W; PAGE. 

